Throttle Position Sensor - Dodge Dakota Sport 2001 Service Manual

14 - 56 FUEL INJECTION
THROTTLE CONTROL CABLE (Continued)
Fig. 59 Accelerator Cable Release Tab—4.7L V-8
1 - ACCELERATOR CABLE
2 - PLASTIC CABLE MOUNT
3 - PRESS TAB FOR REMOVAL
4 - CABLE BRACKET
5 - SLIDE FOR REMOVAL
(7) From inside vehicle, install clip holding cable
to dashpanel (Fig. 22).
(8) From inside vehicle, slide throttle cable core
wire into opening in top of pedal arm.
(9) Push cable retainer (clip) into pedal arm open-
ing until it snaps in place.
(10) Snap cable into dashpanel routing clip.
(11) Install air box to throttle body.
(12) Before starting engine, operate accelerator
pedal to check for any binding.

THROTTLE POSITION SENSOR

DESCRIPTION
The 3–wire Throttle Position Sensor (TPS) is
mounted on the throttle body and is connected to the
throttle blade.
OPERATION
The TPS is a 3–wire variable resistor that provides
the Powertrain Control Module (PCM) with an input
signal (voltage) that represents the throttle blade
position of the throttle body. The sensor is connected
to the throttle blade shaft. As the position of the
throttle blade changes, the resistance (output volt-
age) of the TPS changes.
Engine
The PCM supplies approximately 5 volts to the
TPS. The TPS output voltage (input signal to the
PCM) represents the throttle blade position. The
PCM receives an input signal voltage from the TPS.
This will vary in an approximate range of from .26
volts at minimum throttle opening (idle), to 4.49 volts
at wide open throttle. Along with inputs from other
sensors, the PCM uses the TPS input to determine
current engine operating conditions. In response to
engine operating conditions, the PCM will adjust fuel
injector pulse width and ignition timing.
The PCM needs to identify the actions and position
of the throttle blade at all times. This information is
needed to assist in performing the following calcula-
tions:
• Ignition timing advance
• Fuel injection pulse-width
• Idle (learned value or minimum TPS)
• Off-idle (0.06 volt)
• Wide Open Throttle (WOT) open loop (2.608
volts above learned idle voltage)
• Deceleration fuel lean out
• Fuel cutoff during cranking at WOT (2.608 volts
above learned idle voltage)
• A/C WOT cutoff (certain automatic transmis-
sions only)
REMOVAL - 3.9L/5.2L/5.9L
The TPS is located on side of throttle body.
(1) Remove air duct at throttle body.
(2) Disconnect TPS electrical connector.
(3) Remove two TPS mounting bolts (Fig. 60).
Fig. 60 TPS Mounting Bolts—3.9/5.2/5.9L Engines
1 - THROTTLE POSITION SENSOR
2 - MOUNTING SCREWS
(4) Remove TPS from throttle body.
REMOVAL - 4.7
The TPS is located on the throttle body.
AN